Improved brick-machine



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tant W JOHNW. PEASE, BELMONT, NEW YORK, ASSIGNOR TO I-IIMSELF, v LEONARDWILLE'IS, ANDl ISAAC WILLE'IS, OF SAME PLACE.

Lette/rs Patent No. 84,901, dated December 15, 1868,

IMPRovnD :BRICK-MACHINE. j

The Schedule referred to in these Letters Patent and making part of the same.

the countyof Allegany, and State of New York, have invented certain new and useful Improvements iu Brick- Makiug Machinery; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a diametrical section through the sheet of the pug-mill, showing the mixing 'and disintegratingapparatus therein.

Figure 2 is a diametrical section through the pugmill shell and its mixing and disintegrating-apparatus.

Figure 3 is a horizontal section through iig. l.

Figure 4 is an enlarged sectional view of the same feeder.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to certain novel improvements, which are designed for preparing clay for being moulded into bricks, by thoroughly disintegratin g, kneadin g, and mixing the clay, preparatory to conveying it into moulding-machinery.

The invention is also designed to provide a practical mode of introducing stea'rn or fluid into a body of clay, during the process of mixing and kneadiug the same.

The nature of my invention consists in the employment of hollow, perforated, and spirally-arranged stirring-blades, in combination with a hollow driving-shaft, feed-regulating blades, and a pug-.mill box, for the purpose of allowing the introduction of steam or fluid throughout the entire mass of clay in the mill, during the process of treating the clay, as will be hereinafter explained. y

The invention further consists in a feeder, placed at the bottom of the pug-mill shaft, and so constructed that the feed of the machine can be nicely regulated, according to the temper of the clay, as will be hereinafter explained.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings- A represents acylindrical pug-mill -case or shell, terminating at its lower end in a contracted portion, through which the clay is fed, and by which the clay is more or less condensed in its outward passage.

B is a frame, which is erected over the case A, for the purpose of serving as bearings for a central vertical shaft, C, carrying theeeding and'mixingdevices, and also a spur-wheel, N, which latter is applied fast to the upper end of this shaft C, so as to form a connection between the same on a convenient motivepower.' v

The hub of wheel N supports the shaftC upon frame B, and the iixed collar c prevents the shaft from rising during the treatment of the clay.

The shaft C is hollow, but closed at its lower extremity. Its upper end is designed to receive, in a suitable manner, a pipe leading to a steam-generator, for the purpose of conducting steam to the clay in the case A.

Upon this shaft O, I apply a number of hollow blades, v I), which are properly feathered and arranged in a spiral manner around the axis of their shaft, as shown in theL drawings. The outer extremities lof these blades are closed, but the back edges thereof are perforated, as shown at fi, for the purpose of allowing steam from the hollow .shaft to issue in jets, and in this manner be intimately mixed with the clay in the mill-case, as the shaft C is rotated and the blades forced through and through the clay.

is being tempered, and allow it to be taken by spiral or sectional screw-blades G G, and forced out of the mill.'

In pug-mills hitherto used, if the clay is too'soft, it offers comparatively little resistance to the feeding and mixing-devices, and is forced out of the mill too rapidly and if it is rathertoo'stiff, it may not be fed fast enough. To overcome this objection, I employ the two spiral or screw-blades G G, and apply them to a hub, l), fastened to the lower end of shaft O, so -that their'gathering-in edges are free to be adjusted; and, in combination with'these adjustable edges, I use setscrews a c, or other equivalent device, for adjusting and holding the edges at any desired point. By this means, the feeding-capacity of the blades G can be adjusted according to the consistency of the' stock which it may be required to use in the manufacture of bricks.

It willbe seen that the hollow propelling-blades are so applied to the hollow shaft, and so perforated, that, beside operating as propellers and disiutegrators of the clay, they will leave water or steam (whichever'may be used) in thin sheets .in their wake, and thus uniformly distribute moisture throughout a mass of clay while it is being temperechand while being moved through a vertical pug-mill. The blades cut through the clay, from the centre tothe circumference of the mill-case, and divide the clay in horizontal planes, leaving steam or water between each horizontal division of clay, so that the kneading-operation may be effectually performed.

'Having described my invention,

What I claim aus new, amel desire to secure'by Letfeefl of the clay to brick-making machinery, substante's Patent, istially as described.

l. The combination of the hollow, perforated, and Witness my hemd,` in matter of my application for spirally-set taper-arms D, with' hollow shaft C, and a patent for improvement in machinery for making 'with the feeding-blades G G, substantially as debrick. scribed. Witnesses:- J. W. PEASE.

2. Adjustable feeding-blades G G, applied to the y J. V. CAMPBELL, shaft of the pug-mill, for the piupose of regulating the JULIUS H iRsCH. 

